* Lower limit from API 21 to API 19
This was requested by an internal application. API 19 is when OpenGL
ES 3.0 support was added so there is no good reason for us to not
support this API level. The only trick is to avoid referring to the
glTexStorage2DMultisample symbol directly as it only exists in 3.1.
* Compile out code we never use
* Use reflection to handle shared EGL contexts pre-API 21.
* Remove comment
* More fixes required to run on API level 19
- dlym() fails for ashmem on API 19, so we only try on API 26+ instead.
- Older emulation for OpenGL ES 3.0 returns error states for valid API calls so we need to clear the GL error bit before we create the GL driver.
- Activity lifecycle changes since API 19 would cause animations to keep running and to reference destroyed objects.
- EGLContext.getNativeHandle() is new in API 21, we need to use reflection on API 19. The new code path uses the class loading trick to avoid a bytecode verification error on API 19.
* Filament now runs properly on API level 19
This commit adds a new api_level() API to libutils which can be used to
query the platform's API level. On Android it works as expected, other
platforms currently return 0.
* Add new setExposure(float) API on Camera
This API can be used to set a specific exposure value. For instance:
camera.setExposure(1.0)
Will set the exposure to 1.0 (or ISO 100, apeture 1.0 and shutter speed 1.2s).
This can be useful to match the lighting setup of other engines/tools. Setting
the exposure to 1.0 can for instance be used to treat lights as being unitless
(a directional light could have a strength of 2.0 for instance).
Fixes#1667
* Update release notes
* Fix Java build error
* Fix Web bindings
This removes the samples/envs folder and replaces these KTX files with a
build step that is driven by CMake / gradle / bash, depending on
platform.
This makes it easier to use IBL files that are generated by the latest
and greatest version of cmake.
(1) Sometimes (but not always!) gltfio-android was failing to build due
to two missing ANativeWindow functions. Linking in "android" seems to
fix this, and is consistent with libfilament-jni.
(2) Improve our "build.sh -c" utility by clobbering some additional
Android build directories. This is especially useful after
adding "-Pextra_cmake_args=-DFILAMENT_SUPPORTS_VULKAN=ON", otherwise
Gradle will try to use a cached CMake configuration.
This works by aliasing CUSTOM0 - CUSTOM7 to morphing attributes, and by
extending our existing skinning variant.
This PR was tested against some upcoming changes to gltfio.
Issue #1149, #1417
This is a prep step for the upcoming morph feature and does not require
a bump to our material version number.
Stay tuned for a new sample app that demonstrates this feature.
